CIPA 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey 
Low-size urban projects: when the project scale is a housing 
block or a small part of a district. It is recurrent to have to refer 
to surrounding building shapes to maintain the analysis on the 
project insertion. Photogrammetry may make it possible to 
provide interesting information for the development of the 
project, but only if the project scale is not too large. 
6. EXAMPLES OF ARCHITECTURAL PROJECTS 
USING THE PHOTOGRAMMETRIC TOOL 
To test the validity of our approach we carried out two 
architectural interventions of different kinds. During the visits, 
we had a digital camera (Minolta Dimage F100, 4 Mpixels) and 
the PhotoModeler Pro 4 software (EOS System) for data 
processing. 
The first example is a preliminary work with an industrial 
building rehabilitation. The old malt house of Ingwiller (fig.3), 
a 2000 inhabitants’ town in north Alsace (France). This 
building was built at the beginning of the 20th century and was 
modified several times. It has not any more been in activity 
since 1986, when the malt production was transferred to another 
site. In order to give a new life to this building, it was decided to 
make the survey of it, followed by a test of the transformation 
feasibility for such a building group. 
Figure 3. Ingwiller old malt house 
The second example is a common reflexion at an urban scale. 
The site of Jeanne d'Arc barracks (fig.4) is situated in the 
periphery of Reims (France). Reims was a garrison town at the 
time of the German empire occupation of Alsace-Lorraine. It 
was thus surrounded by barracks at the beginning of this period 
(1870-1914). The Jeanne d'Arc barracks is a hint of this time. 
Strategic interest of Reims barracks disappeared and those will 
be destroyed. 
The two operations have different natures. This enables us to 
study several possible and various uses of architectural 
photogrammetry as a tool. One allows to test the possibility to 
measure with the virtual model of existing (malt house) and the 
other to use the 3D model and the textured model. 
Figure 4. The barracks, aerial picture, current built context. 
6.1. The survey 
As regards to the malt house, the survey and its representation 
constitute the major part of the work, it was carried out in a 
traditional manner (distancemeter). It was long and hard and 
sometimes some distances were impossible to measure. That is 
why an additional outer photogrammetric survey appeared 
interesting to us. It allowed us not only to measure the elements 
which were only visible from outside, but also several inner 
dimensions, thanks to the trace of slabs in facade for example 
(fig-5). 
Figure 5. Malt house virtual model. The trace of slabs in the 
facade and some windows facing the street can be seen 
(PhotoModeler software). 
With regard to the project in Reims, the photogrammetric 
survey was carried out simultaneously with the site visit by the 
design team. The ground being large (approximately 8 
hectares), it was necessary to define an area for the survey. The 
site was the center of our interest. It was decided to survey only 
the buildings that could be seen from the barracks ground. The 
model for this project was to be directed towards a virtual 3D 
model. Only the existing limits on streets of the site were 
modelled. Thus the project could be inserted in a virtual built 
context. 
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